Why the study?
Did three-year survival rates after myocardial infarction improve between 1966-7 and 1981-2 in Auckland?
Population
394 patients who survived four weeks after myocardial infarction in Auckland
Comparison
Myocardial infarction management in the… vs Myocardial infarction management in the…
Design
Cohort
Follow-up
3 years
Key result
Patients with myocardial infarction in 1981-2 had significantly better three-year survival compared to those in 1966-7 (86% vs 75%), despite having more severe infarctions.
Authors
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Supports post-MI survival gains contributing to Auckland CHD mortality decline; extends observational trends but leaves causality and generalizability open.
Cohort (n=394)
Did three-year survival rates after myocardial infarction improve between 1966-7 and 1981-2 in Auckland?
Absolute Event Rate: 86% vs 75%
Improved three-year survival after myocardial infarction contributed to the overall decline in coronary heart disease mortality between the late 1960s and early 1980s in Auckland.
Stewart et al. (1988) conducted a cohort in Myocardial infarction (n=394). 1981-2 cohort vs. 1966-7 cohort was evaluated on Three year survival. Patients with myocardial infarction in 1981-2 had significantly better three-year survival compared to those in 1966-7 (86% vs 75%), despite having more severe infarctions.